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Gemstones, Minerals & Fossils
Gemstones, Minerals & Fossils
LAVA ROCKS WITH METAL MINERALISATION
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<blockquote data-quote="blisters" data-source="post: 577455" data-attributes="member: 4992"><p>Before making assumptions you want to be sure it's volcanic by magnifying the matrix to identify it's mineral composition.</p><p></p><p>I don't know of any magnetic steely looking material that would precipitate out like that. If the balls were a result of precipitation you'd have some form of crystallisation and holes, also some precipitation along lines of travel.</p><p></p><p>These balls also congregate along a density change in the host matrix and rust out where exposed to the elements.</p><p></p><p>If I were to guess I'd say the balls are iron trapped in slag as part of the steel making process.</p><p></p><p>Slag is used in construction/roads etc. so can be transported. Search for images of pig iron slag and compare it to what you have.</p></blockquote><p></p>
[QUOTE="blisters, post: 577455, member: 4992"] Before making assumptions you want to be sure it's volcanic by magnifying the matrix to identify it's mineral composition. I don't know of any magnetic steely looking material that would precipitate out like that. If the balls were a result of precipitation you'd have some form of crystallisation and holes, also some precipitation along lines of travel. These balls also congregate along a density change in the host matrix and rust out where exposed to the elements. If I were to guess I'd say the balls are iron trapped in slag as part of the steel making process. Slag is used in construction/roads etc. so can be transported. Search for images of pig iron slag and compare it to what you have. [/QUOTE]
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Gemstones, Minerals & Fossils
Gemstones, Minerals & Fossils
LAVA ROCKS WITH METAL MINERALISATION
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